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Finding the Fourth Proportional to 208,792.76, 288,134.76 and 113,299.46

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Solution

The fourth proportional to 208,792.76, 288,134.76 and 113,299.46 is: 156,353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,792.76 : 288,134.76 = 113,299.46 : x
  2. Step 2: Convert to fraction form
    208,792.76/288,134.76 = 113,299.46/x
  3. Step 3: Cross multiply
    208,792.76x = 288,134.76 × 113,299.46
  4. Step 4: Simplify right side
    208,792.76x = 32,645,511,274.56
  5. Step 5: Solve for x
    x = 32,645,511,274.56/208,792.76
  6. Step 6: Final answer
    x = 156,353.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.